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The longest side of a triangle is 3 times the shortest side and the third side is 2 cm shorter than the longest side. If the perimeter of the triangle is at least 61 cm, and the minimum length of the shortest side. |
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Answer» Let the shortest side is x, then; Longest side = 3x; Third side = Longest side – 2 = 3x – 2 Perimeter = 3x + 3x – 2 + x ≥ 61 ⇒ 7x – 2 ≥ 61 ⇒ 7x ≥ 61 + 2 ⇒ x ≥ \(\frac{36}{7} = 9\). |
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